DB series pilot operated relief valves and DBW series solenoid operated relief valves can be used to control and unload system pressure.
Ordering Code:
Symbol:
Technical Specification:
| Weight (kg) |
| 10 | 15 | 20 | 25 | 30 |
| DB | 2.6 | - | 3.5 | - | 4.4 |
| DBW | 3.8 | - | 4.7 | - | 5.6 |
| DBC | 5.3 | - | 5.9 | - | 7.1 |
| DB...G | 5.3 | 5.2 | 5.1 | 5.0 | 4.8 |
| DBW....G | 6.6 | 6.4 | 6.3 | 6.2 | 6.0 |
Hydraulic Specification
| Working Pressure of Port A, B, X, P (Mpa) | 35Max |
|
|
|
|
|
|
|
| Y port | DB MPa | 31.5 Max. |
| DBW MPa | AC: 16 Max. DC: 21 Max. |
| Max. Flow Rate (l/m) |
| DB10 | DB15 | DB20 | DB25 | DB30 |
| Plated Mount | 250 | - | 500 | - | 650 |
| Thread Mount | 250 | 500 | 500 | 500 | 650 |
| Oil Standard | Mineral oil (DIN51524(HL,HLP), phosphate oil (HFD-R) |
| Oil Temp. range (ºC) | -30 to + 80 ( nitrile rubber seal ) |
| -20 to +80 ( fluororubber seal) |
| Oil viscosity (mm2/s) | 10 to 800 |
| Oil cleaness | NAS1638 Grade 9, β≥75 |
Ningbo Histar Hydraulic Co., Ltd. is a professional hydraulic valves manufacturer and exporter. Our factory was established in 2005, with years of development, now it covers an area of 10000 square meters, with 250 skilled workers. The annual production capacity reaches 0.5 million pieces. It is located in Ningbo, the second biggest seaport in China, the transportation is very convenient.
The products include directional valves, proportional valves, pressure valves, modular valves, safety valves, which are widely used in the fields of metallurgy, petrol mine, engineering, architecture, mold, chemical, mechanical tool, traffic and so on. The products have been exported to Europe, Middle East, East Asia, South East Asia, Australia, and gained good reputation due to reliable quality and competitive prices.
We persist in "customer satisfaction" as our core value. With many dedicated technicians and advanced equipments, we can provide customers with high quality products and meet their different requirements. Our products are CE approved, and we have passed ISO9001: 2000 quality system.
Cooperate with us, you will find that we are your right choice!
